From 2ab3573380af41a5a70db7efae74728e560c6f0e Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Mon, 26 Sep 2022 17:55:45 +0200
Subject: Autocast on sample generation, progress bar cleanup

---
 main.py | 49 ++++++++++++++++++++++++++++++-------------------
 1 file changed, 30 insertions(+), 19 deletions(-)

diff --git a/main.py b/main.py
index 9bf65a5..aa5af72 100644
--- a/main.py
+++ b/main.py
@@ -351,16 +351,18 @@ class Checkpointer:
             # Generate and save stable samples
             for i in range(0, self.stable_sample_batches):
                 prompt = [batch["prompt"] for i, batch in enumerate(data) if i < self.sample_batch_size]
-                samples = pipeline(
-                    prompt=prompt,
-                    height=self.sample_image_size,
-                    latents=stable_latents,
-                    width=self.sample_image_size,
-                    guidance_scale=guidance_scale,
-                    eta=eta,
-                    num_inference_steps=num_inference_steps,
-                    output_type='pil'
-                )["sample"]
+
+                with self.accelerator.autocast():
+                    samples = pipeline(
+                        prompt=prompt,
+                        height=self.sample_image_size,
+                        latents=stable_latents,
+                        width=self.sample_image_size,
+                        guidance_scale=guidance_scale,
+                        eta=eta,
+                        num_inference_steps=num_inference_steps,
+                        output_type='pil'
+                    )["sample"]
 
                 all_samples += samples
                 del samples
@@ -378,15 +380,17 @@ class Checkpointer:
         # Generate and save random samples
         for i in range(0, self.random_sample_batches):
             prompt = [batch["prompt"] for i, batch in enumerate(data) if i < self.sample_batch_size]
-            samples = pipeline(
-                prompt=prompt,
-                height=self.sample_image_size,
-                width=self.sample_image_size,
-                guidance_scale=guidance_scale,
-                eta=eta,
-                num_inference_steps=num_inference_steps,
-                output_type='pil'
-            )["sample"]
+
+            with self.accelerator.autocast():
+                samples = pipeline(
+                    prompt=prompt,
+                    height=self.sample_image_size,
+                    width=self.sample_image_size,
+                    guidance_scale=guidance_scale,
+                    eta=eta,
+                    num_inference_steps=num_inference_steps,
+                    output_type='pil'
+                )["sample"]
 
             all_samples += samples
             del samples
@@ -682,9 +686,13 @@ def main():
                 if accelerator.sync_gradients:
                     progress_bar.update(1)
                     local_progress_bar.update(1)
+
                     global_step += 1
 
                     if global_step % args.checkpoint_frequency == 0 and global_step > 0 and accelerator.is_main_process:
+                        progress_bar.clear()
+                        local_progress_bar.clear()
+
                         checkpointer.checkpoint(global_step + global_step_offset, text_encoder)
                         save_resume_file(basepath, args, {
                             "global_step": global_step + global_step_offset,
@@ -740,6 +748,9 @@ def main():
 
             accelerator.log({"train/loss": train_loss, "val/loss": val_loss}, step=global_step)
 
+            progress_bar.clear()
+            local_progress_bar.clear()
+
             if min_val_loss > val_loss:
                 accelerator.print(f"Validation loss reached new minimum: {min_val_loss:.2e} -> {val_loss:.2e}")
                 min_val_loss = val_loss
-- 
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